
Digital Camera IC
AN2104NFHQ
Digital Pre-Processing IC for Digital Cameras
1
I
Overview
The AN2104NFHQ is a digital pre-processing IC for CCD
digital cameras. It is a single chip IC including a 10-bit A/D
converter as well as CDS and AGC circuits. The CDS circuit
achieves high-speed sampling at rates up to 25 MHz, and thus
the AN2104NFHQ can support advanced CCD cameras devel-
oping in higher density pixels and image quality, such as XGA
or SXGA resolutions. The AGC and OB circuits can be ad-
justed with 9-bit and 8-bit serial data respectively through on-
chip D/A converter.
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Features
Low power (114 mW typ. at 3 V supply voltage)
High-speed sample-and-hold circuit operates up to 25 MHz.
The AGC can be adjusted over 0.5 dB to 36 dB range.
The OB circuit is adjustable over a {V
RB
to V
RB
+(V
RT
V
RB
)/
4} range.
On-chip A/D converter reference voltage supply circuit (V
RT
and V
RB
)
On-chip 10-bit A/D converter (maximum conversion speed:
25 MSPS)
Built-in 3-channel 8-bit D/A converter for adjustments and
mode settings.
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Applications
Digital still cameras
Video cameras
PC input cameras
Surveillance cameras
Board cameras
Cameras that use CCDs and digital signal processing.
LQFP048-P-0707
Unit : mm
9.00
±
0.40
7.00
±
0.20
9
±
0
1
1
±
0
(
(
0
±
0
7
±
0
(
36
25
1
(0.75)
12
0.20
+
0.10
0.05
24
13
48
37
0.50
SEATING PLANE
(1.00)
0.50
±
0.20
0 to 10
°
0
+
0
0